Gas-burner.



PATENTED DEG. l, 1903.

W. A. COOK.

GAS BURNER.

APPLICATION HLEDYAUG. s. 190s.

NO MODEL.

Tm; nofws PETERS co. wonuvmo,4 wnsumarcm. n r.,

UNTTED STATES ratented December 1, 1903.

PATENT OEEICE.

WILLIAM A. COOK, OF NEW YORK, N. Y., ASSIGNOR TO MANHATTAN BRASS COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

GAS-BURNER.

SEEGIFECATIQN forming part of Letters Patent No. 745,790, dated December 1, 1903.

Application filed August 8,1903. Serial No. 168.705. (No model.)

To @ZZ whom, t may concern:

Be it known that I, WILLIAM A. CooK, a citizen of the United States, residing at the borough of Brooklyn, in the county of Kings, city and State of New York, have invented an Improvement in Gas-Burners, of which the following is a specification.

My invention relates toBunsen gas-burners especially adapted for use with incandescent mantles, and particularly to the construction of convenient and readily-assembled parts for regulating the dow of gas and which do not require any special manipulation or adjustment or indication therefor, as has heretofore been usual with devices of this kind.

In my improvement I employ a revoluble thimble providing for and controllingthe entrance ot gas, a collar surrounding the same and frictioually held thereto iu an adjustable relation and having a part by which the collar and thimble are turned together, a Bunsen tube receiving these parts and through a slot in which the aforesaid part of the collar projects, and a regulating-collar independently supported and movable and adapted by its rotation to move the aforesaid collar and thimble to regulate the ow of gas. These parts are placed and operated without moving the Bunsen tube or chimney-support and air-distributer. This regulating-collar may also be of such form as to be adapted for employment to the air-entrance apertures of the burner in lightingrthe gas to overcome the tendency to the usual light explosion that is injurious to the mantle, the collar thereafter dropping by gravity to establish the desired relation of parts for the air and gas dame.

In the drawings, Figure l is va vertical section and partial elevation representing my improvements. Fig. 2 is an elevation of the lower portion of the Bunsen tube. Fig. 3 is an elevation of the cap to screw upon the end of the gas-pipe. Fig. 4 is an elevation of the thimble fitting around the upper end of the cap. Fig. 5 is an elevation ot' thecollar litting over the thimble. Fig. 6 is an elevation of the regulating-collar, and Fig. 7 is an elevation and vertical section illustrating a form of my invention.

a represents the cap interiorly threaded lower end with holes h for the entrance of air and with a slot b2, that 'intersects two of these holes. The .Bunsen tube is provided with a shoulder connecting the portions thereof of varying diameters, and this Bunsen tube screws upon the threaded part 3 of the Vcap a, so that the lower end comes closely adjacent to the knurled rib 2. A central tube e is adapted to surround the portion of the Bnnsen tube b of smallest diameter, and the collar e is connected to the lower portion of said central tube, and these parts rest upon and are supported by the shoulder of the Bunsen tube. The central tube e is also of varying diameters-that is to say, its upper end, which rises above the Bunsen tube b, is

of larger diameter than the lower portion, and it in turn is adapted to receive and support the gauze cap f.

The airdistributer c and the chimneyholder d rising therefrom are connected to and supported by the collar e and its connection with the central tube e, and the lower freeedge of the air-distributer is appreciably distant from the knurled rib 2 of the cap a.

I provide a thimble g with Va central aperture for the needle-point 6 of the cap a. This thimbleg is adapted to screw upon the threaded part 4 of the cap, andthe aperture therein is tapering to correspond to the taper of the needle-point 6, and when the thimble is screwed down tightly to place the aperture therein is completely closed by the needle-point, so that gas that would pass through the holes 7 of the cap is held within the thimble and cannot escape until the thimble is turned to open up the aperture and permit the gasto escape in the annular openings produced around the needle-point 6.

This thimble is made with IOO and the series of arms thereof may be slightly bent toward the center, so as to produce such a gripping friction of the collar upon the thimble that it is substantially im possible to rotate the one with reference to the other without great force. One of the arms S of the collar is bent outwardly, as shown in Figs. l and 4, and when the collar is in place upon the cap ct this outwardly-bent arm 8 passes through the slot b2 of the Bunsen tube and appreciably beyond the surface of said Bunsen tube, but still Within the lower portion of the ai r-distributer c.

I provide a regulating-collar 't'. (Shown in elevation, Fig. 6, and in section, Fig. l.) This has a knurled periphery to be grasped by the fingers. It approximates a U form in crosssection, so that the vertical part thereof surrounds the Bunsen tube b. The horizontal portion lies upon the knurled rib2 of the cap a. and comes appreciably below the lower edge of the air-distributerc and the knurled portion outside of the said air-distributer. The inner portion of said collar is made with rising projections, between which is a slot 9, and when in position, as shown in Fig. l, the outwardly-extending arm 8 passes within this slot 9, and it will be apparent that when this collar 2' is rotated by the fingers it will in turn simultaneously rotate the slitted collar t and thimble g. The slot bgof the Bunsen tube in its length limits the amount of rotation which may be imparted by the collar?) to the slitted collar h and thimble g. The parts are to be so assembled with reference to Fig. 2 that when the arm 8 is at the left-hand side of the slot b2 the aperture of the thimble gis closed completely by the needle-point 6, and when so turned that the arm 8 is at the right-hand end of the slot b2 the thimble has been raised suflicient to establish an annular opening around the needlepoint that will permit an ample escape of gas for the purposes of the burner. As between these points of eXtreme movement the burner is regulated by the turning of the collar@` and slitted collar 71, and thimble g through the medium of the arm 8, it being possible in this regulation to produce anything between a full light and a light so small as to be barely distinguishable. In fact, it may be so small that the gas and air burning are confined entirely to the upper spread portion of the central tube e adjacent to the gauze capjand which light may be termed a pilotlight.7

This device is exceedingly simple, there are no parts to get out of order, the parts are This collar is of such.

easily assembled, and are efcient in their operation.

It is Jfrequently desirable to be able to close o the air-openings of the burner at the inoment of lighting the gas, because with the ignition of the mixture of gas and air a slight explosion frequently takes place on lighting the burner, and this is detrimental to the integrity of the mantle. In the form of my invention Fig. 7 I aim to overcome this diflculty with the devices of my invention as hereinbet'ore described by providing a space between the lower edge of the air-distributer c and the knurled rib 2, so that the regulating-collar t" may be moved vertically and longitudinally of the Bunsen tube b. The sleeve portion of the collar t, surrounding the tube ZJ, is in the modification made deep and so as to extend upto the lower edges of the air openings or holes b', and the space between the lower edge of the air-distributer c and the upper surface of the horizontal portion of the regulating-collar t" is sufficient to permit said collar when raised by hand at the time of lighting the burner to cover over all the air openings and prevent the Bunsen function thereof and so that only the gas is lighted at the start, after which the said collar drops by gravity the moment same is released, and thus opens up the air-apertures and establishes the Bunsen function of the air and gas flame Without explosion or other demonstration. VIn this construction the slot 9 is also the full depth of the sleeve portion ofthe collar, as in Fig. 6.

I claim as my inventionl. The combination with a cap for the end of the gas-pipe carrying a needle-point at its extreme upper end, a Bunsen tube secured to the said cap and a chimney-holder and airdistributer supported thereby, of coacting adjustable devices operating within and without said Bunsen tube for regulating the supply of gas and movable independent of the aforesaid parts of the burner.

2. The combination with a cap for the end of the gas-pipe carryinga needle-point at its extreme upper end, a Bunsen tube, chimneyholder and air-distributer supported thereby, of a thimble having a central aperture and revolnble for regulating the escape of gas, a device frictionally connected to said thimble and adjustable in its relation thereto, and a revoluble device independent of said thimble and of the parts of the burner, and coacting therewith for effecting the rotation of said thimble by the means of the device frictionally held thereto.

3. The combination with a cap for the end of the gas-pipe carrying a needle-point at its extreme upper end, a Bunsen tube, chimneyholder and air-distributer supported thereby, of a thimble adapted to screw on the end of the said cap,revoluble in its relation to the cap and having a central aperture coacting with the needle-point for regulating the admission IOO IIO

mareo of gas to the burner, a collar surrounding and frictionally held to said thimble and having a part projecting through a slot in the Bunsem tube, aregulating-collar su rronnding the Bumsen tube and moving over a surface of the cap and having a slotted part engaging the projecting part of the collar for simultaneously moving the collar and the thimble to regulate the supply of gas to the burner.

4C. In a gas-burner, the combination of a Bunsen tube having openings for air and a slot horizon tally placed,a cap adapted to screw on the end ofthe gas-pipe and to which the said Bunsen tube is connected, said cap terminating in a needle-point, a thimble surrounding the upper part of the cap, revoluble thereon and having a central aperture receiving the said needle-point, a collar 7i slitted in line with the imaginary axis thereof so as to produce a series of arms, one of which is bent out into a horizontal position and said collar adapted to tit snugly over said thimble and to be held frictionally thereto so that the collar and thimble are adapted to rotate together, and a revoluble device adapted to surround the Bunsen tube, to be operated by hand, amd having a part engaging the arm of the slitted collar.

5. In a gas-burner, the combination of a Bunsen tube having openings for air, and a slot horizontally placed,a cap adapted to screw on the end of the gas-pipe and to Which the said Bunsen tube is connected, said cap terminating in a needle-point, a thimble surrounding the upper part of the cap, revoluble thereon, and having a central aperture receiving the said needle-point, a collar h slitted in line with the imaginary axis thereof so as to produce a series of arms, one ot' which is bent out into a horizontal position, and said collar adapted to tit snugly over said thimble and to be held frictionally thereto so that the collarand thimble are adapted to rotate togelber, a regulating-collarof su bstantially U shape in cross-section having a knurled outer portion to be engaged by the hand, an inner vertical portion to surround the Bunsen tube, a horizontal portion to rest upon the cap for the rotation thereof, and projections ot' the inner portion spaced apart to produce a slot 9 adapted to receive the arm of the slitted collar for the sim ultaueous rotation of the collar and thimble.

6. ln a gas-burner, a cap adapted to screw upon the threaded end of a gas-pipe, having a knurled rib 2, an adjacent threaded part 3 of smaller diameter than the knurled rib, an adjacent and rising eXtcriorly-threaded part 4 of smaller diameter, a conical center rising from the last-named threaded portion and having holes for the escape of gas, and said conical portion terminating in a needle-point 6, a Bunsen tube iuteriorly threaded at its lower end and adapted to screw upon the threaded portion 3 ofthe cap and having holes for the entrance of air and a horizontal slitted portion intersecting two or more of the holes, a regulatingcollar t' adapted to surround the lower end of the Bunsen tube, to rest upon the shoulder produced between the knurled rib 2 and the threaded portion 3 and to be independently revolved thereon, a thimbleg interiorly threaded and adapted to screw upon the threaded portion 4 of the cap and having a central aperture at its upper portion receiving the needle point 6 and adapted in its rotation to close the aperture therein or to open the same for the escape 0f gas, a slitted collar h having a part thereof project-ing at right angles to the collar surrounding the thimble, friction-ally held thereto and adjustable circum ferentially iu relation to the said thimble, the horizontal portion thereof adapted to pass through the slot of the Bumsen tube and into the slotil of the regulating-collar to be operated thereby for y the simultaneous rotation of said slitted collar and thimble to regulate the supply of gas.

7. The combination with a cap forthe end of the gas-pi pe carrying a needle-point at its extreme upper end, a Bunsen tube, chimneyholder and air-distributer supported thereby, of independentcoacting adjustable devices for regulating the supply of gas, movable independent of the aforesaid parts of the burner, and means whereby one of the coacting adjustable devices may be raised to cover over the air-apertures when lighting the burner and to fall by gravity when released to establish the Bunsen function of the burner.

8. The combination with a cap for the end of the gas-pipe carrying a needle-point at its extreme upper end, a Bunsen tube, chimneyholder and air-distributor su pported thereby of a thimble having a central aperture and revoluble for regulating the escape of gas, a device frictionally connected to said thimble and adjustable in its relation thereto, and a revoluble device independent of said thimble and of the parts of the burner and coacting therewith for eI'ecting the rotation of said thirnble by the means of the device frictionally held thereto, and means, whereby the latter device may be raised to momentarily cover over the air-apertures when lighting the burner and to fall by gravity when released to establish the Bunsen function of the burner.

9. The combination with a cap for the end of the gas-pipe carrying a needle-point at its extreme upper end, a Bumsen tube, chimneyholder and air-distributer supported thereby, of a thimble adapted to screw on the end of the said cap, revoluble in its relation to the cap and having a central aperture coacting with the needle-point for regulating the admission of gas to the burner, a collar surroundim g and frictionally held to said thimble and having a part project-ing through a slot in the Bunsen tube, a regulating-collar surrounding the Bumsen tube and moving over a surface of the cap and having a slotted part engaging the projecting part of the collar for simultaneously moving the collar and the thimble to regulate the supply of gas to the IOS IIO

burner, and said collar adapted, because of the position of the lower edge of the air-distributer, for a longitudinal or rising-and-falling movement on the Bu usen tube to momentarily cover over the air-apertu res when lighting the burner and to fall by gravity when released to establish the Bunsen function ot' the burner.

10. The combination with a cap for the end of the gas-pipe carrying a needle-point at its extreme upper end, a Bunsen tube, chimneyholder and air-distributer, of a thinible having a central aperture and revoluble for regulating the supply of gas, a revoluble device hand-actuated and independent of said thimble and surrounding the Bunsen tube, and a device coacting with and intermediate of the thiinble and revoluble device whereby the thimble is operated and the supply of gas regulated.

ll. The combination With a cap for the end of the gas-pipe carrying a needle-point at its extreme upper end, aBunsen tube, chimneyholder and air-distributer, of a thimble having a central aperture and revoluble for regulating the supply of gas, a device surrounding the base of the Bunsen tube and-handoperated along the saine to regulate or close off the air-supply and also revoluble thereon, and a device coacting With and intermediate of the same and the thimble, whereby the thimble is operated and the supply of gas regulated.

12. The combination with a cap for the end of the gas-pipe carrying a needle-point at its extreme upper end, a Bunsen tube, chimneyholder and air-distributer, of a-thimble having a central aperture and revoluble for regulating the supply of gas, a deep regulatingcollar i" having a slot 9 and surrounding the base of the Bunsen tube and hand-operated along the same to regulate or close oi the airsupply and also revoluble thereon, and a device coacting with and intermediate of said hand-operated device and the thimble-wherebythe thimble is operated and the supply of gas regulated. e

Signed by me this 5th day of August, 1908.

WM. A. COOK.

Witnesses:

GEO. T. PINCKNEY, BERTHA M. ALLEN. 

